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∙ 12y ago
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∙ 11y agono
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What property increases going down a group in periodic table?
Atomic size, number of shells (or energy levels) and electropositivity increases down a group on the periodic table.
How would the 4d orbitals differ from the 3d orbitals?
The 4d orbital would be the same shape as the 3d orbital, but just a larger size. Also it would have more nodes than he 3d orbital.
What is the size of an atomic nucleus?
Very small
What is the size of CO molecule?
28 atomic units
Is the atomic size of francium greater than that of cesium?
The atomic radius of francium and caesium are considered to be equal.
How does the size of an atomic nucleus compare with the size of the whole atom?
Think of the sun as the nucleus and the oort cloud (past pluto) as where the electron orbitals start. The size (volume) of the nucleus is tiny compared to the size (volume) of the atom (defined by the extent of the electron cloud).
What meant by hybridization of atomic orbital?
Hybridization of atomic orbitals is the intermixing of atomic orbitals having a approximate energy to form equal number of hybrid orbitals having the same shape, size and energy but pointing in different directions. The new orbitals which are formed are "hybrids" of the originals and have properties that are somewhere in between. For example, a common hybridization is sp3 where three p orbitals combine with an s orbital to form four new orbitals. Other combinations (such as sp and sp2) are also possible.
How are two blank pages of the exact shape and size different?
At an atomic level they cannot be exactly the same shape or size.
Who invented the atomic mass unit?
John Dalton suggested it, but Francis Aston was the one who defined it's size
Why element mercury liquid at room temperature?
the metallic bonding is not very stong among the atoms due to larger atomic size and full filled 'd' orbitals in Hg....
Why the size of atom does not decrease regularly in a period?
pagal u tell
Are all s orbitals the same size?
No. Same shape, but different size.
What is the effect of an additional electron have on atomic size?
According to me the atomic size of an atom increases or decreses with the change in the number of shells. As atomic size is defined as the distance between the nucleus and valence shell of an atom. So, the addition of an electron does not effect the atomic size. As we can see in the periodic table that while moving along a group the number of electrons increases along with increase in no. of shells, while the atomic size tends to be increase with addition of shells and neglecting the addition of electrons. Same is the case while moving along a period. Atomic size decreases while the attraction between increased nuleus charge increases . Thus the size of the atom decreases.
Which has smaller atomic size helium or fluorine or neon?
He has the smaller atomic size. Fluorine has the larger atomic size from these 3. He is a noble gas.
Why OF6 compound is not known?
For the formation of this compound there should be six unpaired electrons in oxygen atom and this is not possible due to absence of 'd' orbitals , secondly the small atomic size of oxygen can not accommodates six fluorine atoms.
Why does atomic size increase from left to right across a period?
atomic size decreases across a period
As you travel down a group in periodic table the atomic size increases or decreases and why?
As you move down in groups there is an extra electron orbital for each group moved down so in turn it is bigger. As you move from left to right in a period, the amount of protons increases which in turn increases the magnetic pulling on the electrons (protons are positive which attract negatively charged electrons) which contracts the molecule. Since all of the molecules in the same period have the same number of electron orbitals, they will gradually be smaller in atomic size.
